package com.interceptor.example.interceptor;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class interceptorDemo implements HandlerInterceptor {

//    //在请求处理的方法之前执行
//    //如果返回true执行下一个拦截器
//    //如果返回false就不执行下一个拦截器
//    @Override
//    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
//        System.out.println("----处理前----");
//        return true;
//    }
//
//    //在请求处理方法执行之后执行
//    @Override
//    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
//        System.out.println("----处理后----");
//    }
//
//    //在dispatcherServlet处理后执行,做清理工作
//    @Override
//    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
//        System.out.println("----清理----");
//    }
}
